It is demonstrated that boron-doped nanowires have predominantly long-term stable wurtzite phase while the majority of phosphorus-doped ones present diamond phase. A simplified model based on the different solubility of boron and phosphorus in gold is proposed to explain their diverse effectiveness in retaining the wurtzite phase. The wurtzite nanowires present a direct transition at the Γ point at approximately 1.5 eV while the diamond ones have a predominant emission around 1.1 eV. The aforementioned results are intriguing for innovative solar cell devices.
Filippo Fabbri, Enzo Rotunno, Laura Lazzarini, Daniela Cavalcoli, Antonio Castaldini, Naoki Fukata, et al. (2013). Preparing the way for doping wurtzite silicon nanowires while retaining the phase. NANO LETTERS, 13(12), 5900-5906 [10.1021/nl4028445].
Preparing the way for doping wurtzite silicon nanowires while retaining the phase
CAVALCOLI, DANIELA;CAVALLINI, ANNA
2013
Abstract
It is demonstrated that boron-doped nanowires have predominantly long-term stable wurtzite phase while the majority of phosphorus-doped ones present diamond phase. A simplified model based on the different solubility of boron and phosphorus in gold is proposed to explain their diverse effectiveness in retaining the wurtzite phase. The wurtzite nanowires present a direct transition at the Γ point at approximately 1.5 eV while the diamond ones have a predominant emission around 1.1 eV. The aforementioned results are intriguing for innovative solar cell devices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
